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Finding the Third Proportional to 428,479,705.72 and 603,393,845.33

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Solution

The third proportional to 428,479,705.72 and 603,393,845.33 is: 849,711,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,479,705.72 : 603,393,845.33 = 603,393,845.33 : x
  2. Step 2: Convert to fraction form
    428,479,705.72/603,393,845.33 = 603,393,845.33/x
  3. Step 3: Cross multiply
    428,479,705.72x = 603,393,845.33 × 603,393,845.33
  4. Step 4: Simplify right side
    428,479,705.72x = 364,084,132,577,477,760
  5. Step 5: Solve for x
    x = 364,084,132,577,477,760/428,479,705.72
  6. Step 6: Final answer
    x = 849,711,497.92

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.